YetiForce
YetiForce is an open high-class CRM (Customer Relationship Management) system that helps to manage relations with customers, suppliers, partners and staff. It's an open, innovative and complex system that has become the key to efficient management within a company.
YetiForce can be easily enriched with add-ons. You can also modify its code as needed and keep it to yourself - no need to show it to anyone. It was created so you could achieve the impossible with your businessVersion : 5.1.0

Vtiger
Vtiger CRM is a full-featured CRM software ideal for small and medium businesses, with low-cost product support available to production users that need reliable support.
Vtiger CRM helps you bring the full potential to life in marketing, sales, and overall customer service. Version : 7.1.0

Dolibarr
Dolibarr is a software built by modules addition, to manage small or medium companies, freelancers or foundations.
Dolibarr is an OpenSource project base on a WAMP, MAMP or LAMP server. Version : 9.0.3

SugarCRM
Sugar CRM is the world's leading provider of commercial open source customer relationship management (CRM) software. Founded as an open source project in 2004, SugarCRM applications have been downloaded over five million times and currently serve over 500,000 users in 75 languages.Version : 6.5.26

EPESI
EPESI is a web application for managing business information. It makes data organizing and sharing easy, simplifies internal communication and makes workflow more efficient.
EPESI has a modular design which makes it flexible and easy to adapt. Its base consists of CRM application with PHP framework, both free and open source, that can be extended with specialized modules.
EPESI is very easy to use. It has a nice, clean and intuitive interface. Many functionalities are designed specifically to let the user work more effectively. EPESI also has lots of shortcutting methods allowing you a quick access to your data. Version : 1.8.2

X2CRM
X2CRM is an open source based Sales, Marketing Automation and Service application designed exclusively for companies that require a tightly focused customer information system. With special emphasis placed on marketing workflows, sales force speed and process optimization, X2CRM is remarkably compact and easy to use. Version : 6.9

SuiteCRM
SuiteCRM is a fork of SugarCRM. SuiteCRM is designed to be a free and open source alternative to SugarCRM Professional Edition. Because it is based on SugarCRM, all the community provided extensions that work with Community Edition will also work with SuiteCRM.
SuiteCRM is also an excellent alternative to SalesForce Professional and Microsoft Dynamics Version : 7.10.16

Zurmo
Zurmo is an Open Source Customer Relationship Management (CRM) application that is mobile, social, and gamified. We use a test-driven methodology for building every part of the application.
This means you can create and maintain a custom-built CRM system with the assurance that future updates are not going to break your installation. Version : 3.2.6

OrangeHRM
OrangeHRM aims to be the worlds leading open source HRM solution for small and medium sized enterprises (SMEs) by providing a flexible and easy to use HRM system affordable for any company worldwide. Version : 4.3.1

iQDesk
iQDesk Engine is the most advanced framework for businesses
The general idea of creating iQDesk Engine was to build some kind of universal extensible tool, which could help the customers to organize their own work flow using only the modules they really required in.Version : 3.0.0

Akaunting
Akaunting is a free, online and open source accounting software designed for small businesses and freelancers. It is built with modern technologies such as Laravel, Bootstrap, jQuery, RESTful API etc. Thanks to its modular structure, Akaunting provides an awesome App Store for users and developers. Version : 1.3.17

webERP
webERP is a complete web based accounting/ERP system that requires only a web-browser and pdf reader to use.
It has a wide range of features suitable for many businesses particularly distributed businesses in wholesale and distribution and manufacturing.Version : 4.14.1

EGroupware
EGroupware is the leading Online Collaboration Tool and the top choice for big enterprises, small businesses and teams within and across organizations all over the globe.
EGroupWare is a free open source groupware software intended for businesses from small to enterprises. Its primary functions allow users to manage contacts, appointments, projects and to-do lists. Version : 17.1.20190111

EspoCRM
EspoCRM is a web application that allows you to see, enter and evaluate all your company relationships regardless of the type. People, companies, projects or opportunities — all in an easy and intuitive interface.Version : 5.6.2

Tine 2.0
Tine 2.0 is an open source project which combines groupware and CRM in one consistent interface. Tine 2.0 is web-based and optimises collaboration and organisation of groups in a lasting manner.
Tine 2.0 unites all the advantages of open source software with an extraordinarily high level of usability and an equally high standard of professional software development. This is what makes the difference between Tine 2.0 and many other existing groupware solutions. Version : 2019.02.7

Group Office 6.1
Group Office is an enterprise CRM and collaboration tool. Share projects, calendars, files and e-mail online with co-workers and clients. Easy to use and fully customizable. Version : 6.1.139

Group Office
Group Office is an enterprise CRM and collaboration tool. Share projects, calendars, files and e-mail online with co-workers and clients. Easy to use and fully customizable. Version : 6.3.60

OpenBiz Cubi
Openbiz Cubi Platform is a fast application development platform designed for business applications. It is built on top of the excellent Openbiz framework. It provides easy and intelligent development tools and implements almost all commonly used components, developers just need to work on their core business logic development. Openbiz Cubi makes application development so quick. Version : 3.0.9

IceHrm
IceHrm is a Human resource management system for small and medium sized organizations. It covers all the basic HRM needs of a company such as leave management, time management and handling employee information. Version : 26.2.0.OS

Zdoo
Zdoo is a management application for small/medium organizations. It is consist of five features, including CRM, OA, CASH, TEAM and App Navigation. It is a more integrated and simplified solution, compared to other similar products. Version : 5.2